There are seven specific research objectives focusing on two practical areas of implementation for clinical decision support services: a) healthcare maintenance and preventive care screening, and b) two chronic disease conditions: Coronary Artery Disease (CAD), and Adult-onset Diabetes Mellitus (AODM). The research objectives are: 1) Knowledge management lifecycle, 2) Knowledge specification, 3) Knowledge portal and repository, 4) CDS knowledge content and public web services, 5) CDS Dashboard, 6)Evaluation, and 7) Dissemination.